Fontan Heart Surgery

After a successful fontan surgery the reconstructed single ventricle heart has achieved its maximal efficiency in terms of ventricular work and near normal oxygen levels but its capacity for work will usually not match that of a normal heart when examined using sophisticated testing. In a normal heart the heart s left side has the job of pumping oxygenated blood into the aorta large artery that carries blood to the body.

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The fontan is done so that almost all the blue blood coming back from the body goes to the lungs.

Fontan heart surgery. A fontan procedure is a palliative medical operation in which the right atrium of the heart is attached directly to the pulmonary artery bypassing the right ventricle. In the fontan procedure. The fontan procedure is the third stage of the repair.

I e the systemic and pulmonary circulations are placed in series with the functional single ventricle. During this surgery the inferior vena cava a large vein that carries deoxygenated blood from the lower body into the heart is disconnected from the heart and attached to the pulmonary artery. It involves diverting the venous blood from the inferior vena cava ivc and superior vena cava svc to the pulmonary arteries without passing through the morphologic right ventricle.

A heart catheterization is done before the fontan. To accomplish this surgeons will most often create a connecting channel or tube outside of the heart. Why is the fontan procedure done.

The fontan procedure or fontan kreutzer procedure is a palliative surgical procedure used in children with univentricular hearts. The inferior vena cava ivc is disconnected from the heart and routed directly to the pulmonary artery. This operation called the fontan procedure occurs at approximately 1 1 2 to 3 years of age.

Often a small hole or fenestration is created between the fontan conduit and the right atrium. This operation is normally performed on children with birth defects of the heart including tricuspid atresia pulmonary atresia hypoplastic heart syndrome single left ventricle double outlet right ventricle and any other single ventricle defects or congenital heart defects that leave the heart with only one functioning. This is an effective palliation in patients with complex congenital heart disease involving single ventricle physiology.

During a fontan surgery congenital heart surgeons reroute the blood flow from the lower body to the lungs by connecting the inferior vena cava to the pulmonary artery. It is done when the child is between 18 months and 2 years of age. Fontan procedure hypoplastic left heart syndrome hlhs is a severe congenital heart defect present at birth in which the left side of the heart is underdeveloped.

The fontan operation involves routing of systemic venous return directly into pulmonary circulation bypassing the subpulmonary ventricle.

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